CN102258957A - Large-scale anti-corrosion agitating paddle and preparation method thereof - Google Patents
Large-scale anti-corrosion agitating paddle and preparation method thereof Download PDFInfo
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- CN102258957A CN102258957A CN2011101426830A CN201110142683A CN102258957A CN 102258957 A CN102258957 A CN 102258957A CN 2011101426830 A CN2011101426830 A CN 2011101426830A CN 201110142683 A CN201110142683 A CN 201110142683A CN 102258957 A CN102258957 A CN 102258957A
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Abstract
The invention discloses an anti-corrosion agitating paddle in a large-scale chemical leaching tank and a preparation method thereof. The large-scale anti-corrosion agitating paddle disclosed by the invention comprises an agitating shaft, an agitating vane and a wheel hub. The technical scheme of the invention is as follows: the thickness of the agitating vane is 60-90mm; no gap exists in the joint of the root of a blade and a wheel hub rack; and the agitating paddle is molded by adopting anti-corrosion material plaster, thereby forming an anti-corrosion runner without a vortex liquid. When an arc-shaped vane is horizontally arranged, the open liquid surfaces of the blade, namely two sides of the blade from the tail of the blade to the middle part of the blade and from the root to a horizontal plane form oblique angles which are not equal; the plane of the blade formed from two side bottom lines of the blade and the horizontal plane are arranged on the agitating shaft in a tilting manner; and the bottom plane and the horizontal plane of a straight plate blade are arranged on the agitating shaft in a tilting manner. The large-scale anti-corrosion agitating paddle disclosed by the invention has the advantages of good vortex liquid diversion, great propulsion, good agitating effects, short leaching time, long service life and suitability for the large-scale chemical leaching tank with the volume of 150-500m<3>.
Description
Technical field
The invention belongs to the paddle technical field, be specifically related to a kind of interior anticorrosion paddle of large-size chemical leaching groove and preparation method thereof that is used for.
Background technology
Usually, in electrochemical industry, than higher, need to be fit to big volume, stirring at low speed running, requirements such as water conservancy diversion is good, propulsive force is big, anticorrosive, high temperature resistance for the requirement of used paddle in the large-scale leaching grooves such as manganese dioxide, manganese metal, cathode copper and electrolytic aluminium.Present stirrer paddle, wheel hub, axle roughly are divided into three major types: a class is that titanium 316L and stainless steel material are made, comprise having of various water conservancy diversion and planform, but blade thickness generally has only 15-20mm, frequent sealing-off, meet the severe corrosive quick abrasion, blade and hub frame junction convex-concave are big, easily produce big whirlpool liquid, have a strong impact on propulsive force or the power that raises up, and cost height, service life are short, mixing effect is poor, leaching time is long; Two classes are that various rubber plastics are made, its convex-concave seam when the temperature difference is big because bounce and fission easily produce seepage, easily burn when high temperature and deep-etching, therefore, aging fast, maintenance difficulty is big, service time is short, blade and generation whirlpool, hub frame junction liquid greatly, water conservancy diversion is poor, propulsive force is little, mixing effect is poor, leaching time is long; Three classes are that anti-corrosion material is made, such as phosphorus sheet, epoxy, KPI clay, furans, phenolic fiberglass reinforced plastics, its in high temperature, deep-etching, the long-time stirring, quick abrasion, coefficient of thermal expansion and contraction is poor, difficulty of construction is big, curing period is long, service time is short, whirlpool liquid greatly, water conservancy diversion is poor, propulsive force is little, mixing effect is poor, leaching time is long.
Summary of the invention
First purpose of the present invention is at the above-mentioned defective that exists in the prior art, provide that a kind of not whirlpool liquid water conservancy diversion is good, the big mixing effect of propulsive force is good, leaching time is short, long service life be used for 150-500m
3The large anticorrosion erosion paddle of volume leaching groove.
First purpose of the present invention realizes by the following technical solutions: this large anticorrosion erosion paddle, comprise shaft, stirrer paddle and wheel hub, stirrer paddle comprises the anti-corrosion material that is shaped based on the steel skeleton of blade form and parcel steel skeleton, and steel skeleton is connected with the buttcover plate of wheel hub by screw; Stirrer paddle or for upper and lower surface is respectively the arc blade of convex-concave cambered surface, or be the straight plate blade on plane for the above and below; Be characterized in:
Described arc blade thickness range is 60 ~ 80mm; During the blade horizontal positioned blade open liquid level blade two sides from the blade afterbody to blade the side, middle part, form unequal oblique angle from blade middle part to root of blade side and horizontal plane: open before the blade liquid level from the blade tail end to stir that left surface that axis direction looks comprises from the blade afterbody to blade the side, middle part and in the middle part of the blade to the root of blade side, two sides all are tilted to the right, with the angle of horizontal plane be respectively 80 ~ 85 and 75 ~ 80; Open liquid level behind the blade and promptly comprise side, middle part to stirring the right flank that axis direction looks, also be tilted to the right from the blade afterbody to blade from the blade tail end, with the angle of horizontal plane be 83 ~ 87; Blade is installed on the shaft at a slant with its formed plane of both sides hemline and horizontal plane, open before the blade liquid level be in the top, after open liquid level be in the below, range of tilt angles be 25 ~ 45 the degree; The root of blade and wheel hub hub frame buttcover plate junction are seamless, adopt dope mud to make the no whirlpool liquid anticorrosion runner of the thickness of a trend shaft by 65 mm to 85 mm to 135 mm gradual changes; The top of the root of blade and wheel hub hub frame buttcover plate junction is also seamless, adopts the clay transition face in the arc-shaped of dope;
Described straight plate blade thickness range is 65 ~ 90mm; The angle of opening liquid level blade two sides and horizontal plane of blade is 90 during the blade horizontal positioned; Blade is installed on the shaft at a slant with its baseplane and horizontal plane, and is identical with the definition of described arc blade, preceding open liquid level be in the top, after open liquid level be in the below, range of tilt angles be 25 ~ 45 the degree; The root of blade and wheel hub hub frame buttcover plate junction are seamless, adopt dope mud to make the no whirlpool liquid anticorrosion runner of the thickness of a trend shaft by 65 mm to 85 mm to 135 mm gradual changes; Also seamless between the top of the root of blade and wheel hub hub frame buttcover plate junction, adopt the clay transition face in the arc-shaped of dope;
Described shaft adopts the thick-walled pipe of Ф 194 ~ 219mm, and the tube wall of the shaft except that wheel hub hub frame is installed is provided with nexine dope mud layer, steel mesh steel wire floor, outer dope mud layer outward successively;
On the described shaft or double-deck eight oars are installed, promptly bottom is equipped with a four-bladed arc blade, and the upper strata is equipped with a straight plate blade of four-bladed;
On the described shaft or three layer of ten oar is installed, promptly bottom is equipped with the straight plate blade of one two blade, and the middle level is equipped with a four-bladed arc blade, and the upper strata is equipped with a straight plate blade of four-bladed.
At different volumes and rotating speed, assemble balance, the steel skeleton of described arc blade or steel plate frame, or steel plate framework of steel reinforcement for guaranteeing weight balancing and center of gravity; When being steel plate frame, on steel plate, be drilled with some circular holes; When being the steel plate framework of steel reinforcement, it is a steel plate with the part that the wheel hub buttcover plate is connected by screw, one side or what be positioned at this part all is steel plate, and on steel plate, be drilled with some circular holes, in addition be bar construction;
The steel skeleton of described straight plate blade is a steel plate structure, and steel plate be positioned at blade afterbody place be drilled with afterbody be the circular arc limit all the other be the cavity on linear limit, be drilled with square or leg-of-mutton cavity at steel plate middle part.
Second purpose of the present invention provides the preparation method of above-mentioned large anticorrosion erosion paddle, comprises following process:
(1) making of blade: at first, carry out twice anticorrosion process after the steel skeleton rust cleaning with blade and handle;
Adopt the multilayer conjoined mold multi-disc blade of producing once: the bottom of earlier anti-corrosion material being injected every layer of mould, prick pressure by the technology layering, put into steel skeleton then, anti-corrosion material reinjects, layering is pricked pressures, the roll extrusion that formalizes, is put the membrane separation stereotype plate again, the dress connection mode carries out the disjunctor casting again and put the top positioning module after good, advances to be incubated in the closed equipment and vulcanizes;
Vulcanizing treatment is after 36 hours under 60 ℃ ~ 130 ℃ temperature, cooling, loose film, demoulding, finishing again, after in reactive phenolic resin, adding heat-insulating powder then, ooze the method brushing on blade with heat, vulcanized 24 hours under 80 ℃ ~ 130 ℃ temperature, continuous so repeatedly 6 ~ 7 vulcanizing treatment are to the blade surface light again;
When making the arc blade, with the arc blade open liquid level be the blade two sides from the blade afterbody to blade the side, middle part, form unequal oblique angle from blade middle part to root of blade side and horizontal plane: open before the blade liquid level promptly from the blade tail end to stir that left surface that axis direction looks comprises from the blade afterbody to blade the side, middle part and in the middle part of the blade to the root of blade side, two sides all are tilted to the right, with the angle of horizontal plane be respectively 80 ~ 85 and 75 ~ 80; Open liquid level behind the blade and promptly comprise side, middle part to stirring the right flank that axis direction looks, also be tilted to the right from the blade afterbody to blade from the blade tail end, with the angle of horizontal plane be 83 ~ 87; The blade thickness range is 60 ~ 80mm;
When making straight plate blade, the liquid level of opening of blade is that the angle of blade two sides and horizontal plane is 90; The blade thickness range is 65 ~ 90mm;
(2) installation of blade: be installed to the root of blade on the buttcover plate of the wheel hub hub frame on the shaft by screw, and make the arc blade be installed on the shaft at a slant with its formed plane of both sides hemline and horizontal plane, make straight plate blade be installed on the shaft at a slant with its baseplane and horizontal plane, open liquid level before the blade and be in the top, after open liquid level be in the below, range of tilt angles be 25 ~ 45 the degree;
(3) runner moulding: root and wheel hub hub frame buttcover plate junction at blade adopt anticorrosion clay to smear moulding, make between blade root and the hub frame seamless, thereby the thickness that forms a trend shaft is by the anticorrosion runner of no whirlpool liquid of 65 mm to 85 mm to 135 mm gradual changes; Top in blade root and hub frame buttcover plate junction adopts anticorrosion clay to smear moulding, make between the hub frame on blade root and buttcover plate top seamless, thereby form a circular arc transition face;
(4) the anticorrosion preparation of shaft: shaft adopts the thick-walled pipe of Ф 194 ~ 219mm to make, outside the tube wall of the shaft except that wheel hub hub frame is installed, at first stick with paste the anticorrosion clay of one deck, form nexine dope mud layer, put the steel mesh of 2mm again, after the steel wire encircling with Ф 2mm, paste the anticorrosion clay of one deck again over, strengthening superficial density with the manual polishing of acidproof powder at last, is the outer dope mud layer of 13 ~ 15mm thereby form thickness;
(5) making of double-deck eight oars and three layer of ten oar paddle:
The quaterfoil arc blade that above-mentioned technology is made is installed on the bottom of shaft as stated above, the straight plate blade of quaterfoil is installed on the upper strata of shaft, thereby forms double-deck eight oar paddles;
The straight plate blade of two blades that above-mentioned technology is made is installed on the bottom of shaft as stated above, and quaterfoil arc blade is installed on the middle level of shaft, and the straight plate blade of quaterfoil is installed on the upper strata of shaft, thereby forms three layer of ten oar paddle.
More particularly, anti-corrosion material described in the step (1) is meant that reactive phenolic resin, porcelain powder, silica flour, diamond dust are respectively by the mixture of 19.17%, 43%, 12.5%, 25.33% mass percent; Anticorrosion clay described in step (3) and the step (4) is meant reactive phenolic resin, acidproof powder filler, the curing agent mixture by the mass ratio of 1:1.2 ~ 1.8:0.02 ~ 0.05.
Accordingly, when the steel skeleton of the described blade of step (1) is the steel skeleton of arc blade, or adopt steel plate frame, or adopt the steel plate framework of steel reinforcement; When adopting steel plate frame, on steel plate, bore some circular holes; When adopting the steel plate framework of steel reinforcement, it adopts steel plate with the wheel hub buttcover plate by the part that screw is connected, or is positioned at one side employing steel plate of this part, and bores some circular holes, employing bar construction in addition on steel plate;
When the steel skeleton of the described blade of step (1) is the steel skeleton of straight plate blade, employing be steel plate structure, and steel plate be positioned at blade afterbody place bore afterbody be the circular arc limit all the other be the cavity on linear limit, in the square or leg-of-mutton cavity of steel plate drilled in middle.
The present invention is owing to the bigger blade of employing thickness value, and blade is inclined relative to horizontal certain angle when being installed on the shaft, and the liquid level of opening of arc blade also forms certain oblique angle with horizontal plane; Add and adopt anticorrosion clay to smear moulding at the root and the wheel hub hub frame of blade, formed the anticorrosion runner of no whirlpool liquid seamless between blade and the shaft, strengthened propulsive force, (39 ~ 60 rev/mins) produce the big wave of splayed when the blade low-speed running, and the gap drop of big wave strengthens propulsive force along runner.Experiment showed, that bilayer eight oars that adopt among the present invention or three layer of ten oar paddle take over formula and advance, per minute can turn over and mix liquid 1200 ~ 2600m-
3, belong to stealthy big wave and mix, at 150m
3To 380m
3Following of volume need a mixing effect that just surpasses 2 to 3 of original stainless steel schemes, under equal conditions can reduce residual quarrel content 0.5 ~ 1%.And big propulsive force makes the shaft weight saving in the running, has reduced mechanical wear.
Shaft of the present invention has increased its bulk strength, the impact of anti-foreign matter and anti-corrosive properties owing to adopted the structural manufacturing process of dope mud layer and steel wire steel mesh layer.Blade has also adopted corrosion resistant reactive phenolic resin and preparation technology, experiment showed, that the blade surface water absorption rate is 0, and reaches nothing corrosion under concentrated acid, diluted acid and high temperature, Mohs' hardness≤7, year wearing and tearing 1-2 millimeter.
The experiment proved that profitable fruit of the present invention is mainly reflected in following several aspect:
(1) long service life: be the several times of stainless steel material or tens of times of other material service life of the present invention.
(2) high temperature resistant: as in 3 ℃ to+130 ℃ temperature ranges of ﹣, not chap.
(3) wear-resistant: as to use middle age wearing and tearing 0.7-2.0 ㎜ at manganese dioxide and manganese metal.
(4) be able to bear strong corrosion: in electrolytic manganese dioxide and the too white medium of metal acid, to rare deep-etching process, non-corrosiveness peels off sulfuric acid by dense.
(5) high propulsive force: blade and wheel hub junction do not have whirlpool liquid runner with the clay moulding, the efficient running stirring propulsive force of utilizing.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the embodiment of the invention.
Fig. 2 is the structural representation of quaterfoil arc blade of the present invention when not smearing anticorrosion clay when being installed on wheel hub hub frame.
Fig. 3 is the structural representation of the straight plate blade of quaterfoil of the present invention when not smearing anticorrosion clay when being installed on wheel hub hub frame.
Fig. 4 is the structural representation of the straight plate blade of two blades of the present invention when not smearing anticorrosion clay when being installed on wheel hub hub frame.
Fig. 5 is the cross-sectional view of shaft of the present invention.
Fig. 6 to Fig. 9 is the structural representation of the steel skeleton of arc blade of the present invention.
Figure 10 to Figure 11 is the structural representation of the steel skeleton of straight plate blade of the present invention.
Figure 12 is the structural representation of the multilayer conjoined mold of arc blade.
Figure 13 is the structural representation of the multilayer conjoined mold of straight plate blade.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 1, present embodiment is a bilayer eight oar paddles, it comprises shaft 1, arc blade 2 and straight plate blade 3, wheel hub 4 and wheel hub 5, and arc blade 2 and straight plate blade 3 are made up of the anti-corrosion material that its inside is shaped based on the steel skeleton of blade form and parcel steel skeleton.As seen from the figure, double-deck eight oar paddles are by wheel hub 4 four-bladed arc blade 2 to be installed at the bottom of shaft 1, by wheel hub 5 the straight plate blade 3 of four-bladed are installed on the upper strata of shaft 1.
The vane thickness of the arc blade 2 of present embodiment is 70mm, and the upper and lower faces of blade is respectively protruding, recessed cambered surface.During the blade horizontal positioned, blade open liquid level be the blade two sides from the blade afterbody to blade the side, middle part, form unequal oblique angle from blade middle part to root of blade side and horizontal plane, that is to say, open before the blade liquid level 601 promptly from the blade tail end to stir that left surface that axis direction looks comprises from the blade afterbody to blade the side, middle part and from the blade middle part to the root of blade side, two sides all are tilted to the right, with the angle of horizontal plane be respectively 82 and 78; Open liquid level 602 behind the blade and promptly comprise side, middle part to stirring the right flank that axis direction looks, also be tilted to the right from the blade afterbody to blade from the blade tail end, with the angle of horizontal plane be 85.The blade of arc blade 2 is installed on the shaft 1 at a slant with its formed plane of both sides hemline and horizontal plane, open before the blade liquid level 601 be in the top, after open liquid level 602 be in the below, the angle of inclination be 30 the degree.Referring to Fig. 2, specifically, arc blade 2 is that the screw 7 by its root is connected on the buttcover plate 8 of wheel hub 4.As seen from Figure 1, the root of blade and wheel hub hub frame buttcover plate junction are seamless, adopt dope mud to make the no whirlpool liquid anticorrosion runner 9 of the thickness of a trend shaft 1 by 65 mm to 85 mm to 135 mm gradual changes.In addition, the top of the root of blade and wheel hub hub frame buttcover plate junction is also seamless, adopts the clay transition face 10 in the arc-shaped of dope.
The vane thickness of the straight plate blade 3 of present embodiment is 75mm, and the above and below of blade is the plane.The liquid level of opening of blade is that the baseplane of blade two sides and blade forms the right angle; Blade also is installed on the shaft 1 at a slant with its baseplane and horizontal plane, open before the blade liquid level 1101 be in the top, after open liquid level 1102 be in the below, range of tilt angles be 30 the degree.Referring to Fig. 3, specifically, straight plate blade 3 also is that the screw 12 by its root is connected on the buttcover plate 13 of wheel hub 5.As seen from Figure 1, the root of blade and wheel hub hub frame buttcover plate junction are also seamless, adopt dope mud to make the no whirlpool liquid anticorrosion runner 14 of the thickness of a trend shaft 1 by 65 mm to 85 mm to 135 mm gradual changes; Also seamless between the top of the root of blade and wheel hub hub frame buttcover plate junction, adopt the clay transition face 15 in the arc-shaped of dope.
Referring to Fig. 5, the shaft 1 of present embodiment adopts the thick-walled pipe of Ф 219mm, and the outside of the tube wall 16 of the shaft 1 except that wheel hub hub frame is installed is provided with nexine dope mud layer 17, steel mesh steel wire floor 18, outer dope mud layer 19 successively.
Referring to Fig. 6, Fig. 7, Fig. 8 and Fig. 9, be the schematic diagram of four kinds of versions of the steel skeleton of arc blade of the present invention 2 inside.Wherein, Fig. 6 and Fig. 7 are steel plate frames, as seen from the figure, are drilled with some circular holes on steel plate.Fig. 8 and Fig. 9 are the steel plate frameworks of steel reinforcement, and as seen from the figure, it is a steel plate with the part that the wheel hub buttcover plate is connected by screw 7, one side or what be positioned at this part all is steel plate (as shown in Figure 9), and on steel plate, be drilled with some circular holes, in addition then be bar construction.Referring to Figure 10 and Figure 11, be the schematic diagram of two kinds of versions of the steel skeleton of straight plate blade of the present invention 3 inside.The steel skeleton of straight plate blade 3 is steel plate structures, as seen from the figure, steel plate be positioned at blade afterbody place be drilled with afterbody be the circular arc limit all the other be the cavity on linear limit, in the middle part of steel plate, be drilled with square or leg-of-mutton cavity.Above-mentioned blade steel skeleton construction is to select by factors such as factory technics condition, solid-to-liquid ratio, blade angle, torsion, can guarantee heavy balance, gravity balance.
The preparation process of the double-deck eight oar paddles of the present invention is as follows:
(1) making of blade: at first, carry out twice anticorrosion process after the steel skeleton rust cleaning with arc blade 2 and straight plate blade 3 and handle;
Adopt the multilayer conjoined mold multi-disc blade of producing once: referring to Figure 12, Figure 13, be respectively the multilayer conjoined mold of arc blade 2 and straight plate blade 3, adopt this mould can once make four blades.It earlier is reactive phenolic resin, porcelain powder, silica flour, diamond dust inject every layer of mould respectively by the mixture of 19.17%, 43%, 12.5%, 25.33% mass percent bottom with anti-corrosion material, prick pressure by the technology layering, put into steel skeleton then, anti-corrosion material reinjects, layering is pricked pressures, the roll extrusion that formalizes, is put the membrane separation stereotype plate again, the dress connection mode carries out the disjunctor casting again and put the top positioning module after good, advances to be incubated in the closed equipment and vulcanizes;
In vulcanizing treatment under 60 ℃ the temperature after 36 hours, cooling, loose film, demoulding, finishing again after the adding heat-insulating powder, oozed the method brushing on blade with heat then in reactive phenolic resin, vulcanized 24 hours under 80 ℃ temperature, continuous so repeatedly 7 vulcanizing treatment are to the blade surface light again;
For making the arc blade, with the arc blade open liquid level be the blade two sides from the blade afterbody to blade the side, middle part, form unequal oblique angle from blade middle part to root of blade side and horizontal plane, that is to say, open before the blade liquid level promptly from the blade tail end to stir that left surface that axis direction looks comprises from the blade afterbody to blade the side, middle part and from the blade middle part to the root of blade side, two sides all are tilted to the right, with the angle of horizontal plane be respectively 82 and 78; Open liquid level behind the blade and promptly comprise side, middle part to stirring the right flank that axis direction looks, also be tilted to the right from the blade afterbody to blade from the blade tail end, with the angle of horizontal plane be 85.The upper and lower faces of blade is respectively protruding, recessed cambered surface, and blade thickness is 70mm;
For making straight plate blade, the above and below of blade is the plane, and blade thickness is 75mm, blade open the formation right angle, baseplane that liquid level is blade two sides and blade;
(2) installation of blade: the root of four arc blades that above-mentioned technology is made is installed to by screw on the buttcover plate of wheel hub hub frame of shaft bottom, and make blade with its formed plane of both sides hemline and horizontal plane inclination 30 degree, open before the blade liquid level be in the top, after open liquid level be in the below; The root of four straight plate blades that above-mentioned technology is made is installed to by screw on the buttcover plate of wheel hub hub frame on shaft upper strata, and the baseplane that makes blade is inclined relative to horizontal 30 degree, open before the blade liquid level be in the top, after open liquid level be in the below.
(3) runner moulding: root and wheel hub hub frame buttcover plate junction at blade adopt anticorrosion clay to smear moulding, make between blade root and the hub frame seamless, thereby the thickness that forms a trend shaft is by the anticorrosion runner of no whirlpool liquid of 65 mm to 85 mm to 135 mm gradual changes; Top in blade root and hub frame buttcover plate junction adopts anticorrosion clay to smear moulding, make between the hub frame on blade root and buttcover plate top seamless, thereby form a circular arc transition face.Wherein, anticorrosion clay is meant reactive phenolic resin, acidproof powder filler, the curing agent mixture by the mass ratio of 1:1.8:0.02.
(4) the anticorrosion preparation of shaft: shaft adopts the thick-walled pipe of Ф 219mm to make, outside the tube wall of the shaft except that wheel hub hub frame is installed, at first stick with paste the anticorrosion clay of one deck, form nexine dope mud layer, put the steel mesh of 2mm again, after the steel wire encircling with Ф 2mm, paste the anticorrosion clay of one deck again over, strengthening superficial density with the manual polishing of acidproof powder at last, is the outer dope mud layer of 15mm thereby form thickness.Wherein, anticorrosion clay is meant reactive phenolic resin, acidproof powder filler, the curing agent mixture by the mass ratio of 1:1.8:0.02.
In the above-mentioned preparation process, the temperature that primary vulcanization was handled 36 hours in the step (1) can be the arbitrary temperature in 60 ℃ ~ 130 ℃; 24 hours temperature of vulcanizing treatment after demoulding, the finishing can be the arbitrary temperature in 80 ℃ ~ 130 ℃, continuous so repeatedly 6 times or 7 times.Open the i.e. side, middle part and can be respectively unspecified angle 80 ~ 85 and 75 ~ 80 to the angle of root of blade side and horizontal plane of liquid level before the arc blade from blade middle part from the blade afterbody to blade, open behind the arc blade liquid level promptly from the blade afterbody to blade in the middle part of the angle of side and horizontal plane can be unspecified angle 83 ~ 87.The thickness of arc blade can be the arbitrary numerical value among 60 ~ 80mm, and the thickness of straight plate blade can be the arbitrary numerical value among 65 ~ 90mm.
In the step (2), blade is inclined relative to horizontal with its formed plane of both sides hemline and is installed on the shaft, and range of tilt angles can be the arbitrary numerical value in 25 ~ 45 degree.
In the step (4), shaft can adopt the thick-walled pipe of arbitrary specification among Ф 194 ~ 219mm; The thickness of outer dope mud layer can be in the scope of 13 ~ 15mm.
Can to be reactive phenolic resin, acidproof powder filler, curing agent mix by the mass ratio of 1:1.2 ~ 1.8:0.02 ~ 0.05 anticorrosion clay described in step (3) and the step (4).
In addition, referring to Fig. 4, it is the straight plate blade of two blades, technology preparation method with reference to above-mentioned double-deck eight oar paddles, the straight plate blade of two blades is installed on the bottom of shaft, quaterfoil arc blade is installed on the middle level of shaft, and the straight plate blade of quaterfoil is installed on the upper strata of shaft, thereby forms three layer of ten oar paddle.
Claims (5)
1. large anticorrosion erosion paddle comprises shaft, stirrer paddle and wheel hub, and stirrer paddle comprises the anti-corrosion material that is shaped based on the steel skeleton of blade form and parcel steel skeleton, and steel skeleton is connected with the buttcover plate of wheel hub by screw; Stirrer paddle or for upper and lower surface is respectively the arc blade of convex-concave cambered surface, or be the straight plate blade on plane for the above and below; It is characterized in that:
Described arc blade thickness range is 60 ~ 80mm; During the blade horizontal positioned blade open liquid level blade two sides from the blade afterbody to blade the side, middle part, form unequal oblique angle from blade middle part to root of blade side and horizontal plane: open before the blade liquid level from the blade tail end to stir that left surface that axis direction looks comprises from the blade afterbody to blade the side, middle part and in the middle part of the blade to the root of blade side, two sides all are tilted to the right, with the angle of horizontal plane be respectively 80 ~ 85 and 75 ~ 80; Open liquid level behind the blade and promptly comprise side, middle part to stirring the right flank that axis direction looks, also be tilted to the right from the blade afterbody to blade from the blade tail end, with the angle of horizontal plane be 83 ~ 87; Blade is installed on the shaft at a slant with its formed plane of both sides hemline and horizontal plane, open before the blade liquid level be in the top, after open liquid level be in the below, range of tilt angles be 25 ~ 45 the degree; The root of blade and wheel hub hub frame buttcover plate junction are seamless, adopt dope mud to make the no whirlpool liquid anticorrosion runner of the thickness of a trend shaft by 65 mm to 85 mm to 135 mm gradual changes; The top of the root of blade and wheel hub hub frame buttcover plate junction is also seamless, adopts the clay transition face in the arc-shaped of dope;
Described straight plate blade thickness range is 65 ~ 90mm; The angle of opening liquid level blade two sides and horizontal plane of blade is 90 during the blade horizontal positioned; Blade is installed on the shaft at a slant with its baseplane and horizontal plane, and is identical with the definition of described arc blade, preceding open liquid level be in the top, after open liquid level be in the below, range of tilt angles be 25 ~ 45 the degree; The root of blade and wheel hub hub frame buttcover plate junction are seamless, adopt dope mud to make the no whirlpool liquid anticorrosion runner of the thickness of a trend shaft by 65 mm to 85 mm to 135 mm gradual changes; Also seamless between the top of the root of blade and wheel hub hub frame buttcover plate junction, adopt the clay transition face in the arc-shaped of dope;
Described shaft adopts the thick-walled pipe of Ф 194 ~ 219mm, and the tube wall of the shaft except that wheel hub hub frame is installed is provided with nexine dope mud layer, steel mesh steel wire floor, outer dope mud layer outward successively;
On the described shaft or double-deck eight oars are installed, promptly bottom is equipped with a four-bladed arc blade, and the upper strata is equipped with a straight plate blade of four-bladed;
On the described shaft or three layer of ten oar is installed, promptly bottom is equipped with the straight plate blade of one two blade, and the middle level is equipped with a four-bladed arc blade, and the upper strata is equipped with a straight plate blade of four-bladed.
2. large anticorrosion erosion paddle according to claim 1 is characterized in that: the steel skeleton of described arc blade or steel plate frame, or steel plate framework of steel reinforcement; When being steel plate frame, on steel plate, be drilled with some circular holes; When being the steel plate framework of steel reinforcement, it is a steel plate with the part that the wheel hub buttcover plate is connected by screw, one side or what be positioned at this part all is steel plate, and on steel plate, be drilled with some circular holes, in addition be bar construction;
The steel skeleton of described straight plate blade is a steel plate structure, and steel plate be positioned at blade afterbody place be drilled with afterbody be the circular arc limit all the other be the cavity on linear limit, be drilled with square or leg-of-mutton cavity at steel plate middle part.
3. the preparation method of a large anticorrosion as claimed in claim 1 erosion paddle is characterized in that comprising following process:
(1) making of blade: at first, carry out twice anticorrosion process after the steel skeleton rust cleaning with blade and handle;
Adopt the multilayer conjoined mold multi-disc blade of producing once: the bottom of earlier anti-corrosion material being injected every layer of mould, prick pressure by the technology layering, put into steel skeleton then, anti-corrosion material reinjects, layering is pricked pressures, the roll extrusion that formalizes, is put the membrane separation stereotype plate again, the dress connection mode carries out the disjunctor casting again and put the top positioning module after good, advances to be incubated in the closed equipment and vulcanizes;
Vulcanizing treatment is after 36 hours under 60 ℃ ~ 130 ℃ temperature, cooling, loose film, demoulding, finishing again, after in reactive phenolic resin, adding heat-insulating powder then, ooze the method brushing on blade with heat, vulcanized 24 hours under 80 ℃ ~ 130 ℃ temperature, continuous so repeatedly 6 ~ 7 vulcanizing treatment are to the blade surface light again;
When making the arc blade, with the arc blade open liquid level be the blade two sides from the blade afterbody to blade the side, middle part, form unequal oblique angle from blade middle part to root of blade side and horizontal plane: open before the blade liquid level promptly from the blade tail end to stir that left surface that axis direction looks comprises from the blade afterbody to blade the side, middle part and in the middle part of the blade to the root of blade side, two sides all are tilted to the right, with the angle of horizontal plane be respectively 80 ~ 85 and 75 ~ 80; Open liquid level behind the blade and promptly comprise side, middle part to stirring the right flank that axis direction looks, also be tilted to the right from the blade afterbody to blade from the blade tail end, with the angle of horizontal plane be 83 ~ 87; The blade thickness range is 60 ~ 80mm;
When making straight plate blade, the liquid level of opening of blade is that the angle of blade two sides and horizontal plane is 90; The blade thickness range is 65 ~ 90mm;
(2) installation of blade: be installed to the root of blade on the buttcover plate of the wheel hub hub frame on the shaft by screw, and make the arc blade be installed on the shaft at a slant with its formed plane of both sides hemline and horizontal plane, make straight plate blade be installed on the shaft at a slant with its baseplane and horizontal plane, open liquid level before the blade and be in the top, after open liquid level be in the below, range of tilt angles be 25 ~ 45 the degree;
(3) runner moulding: root and wheel hub hub frame buttcover plate junction at blade adopt anticorrosion clay to smear moulding, make between blade root and the hub frame seamless, thereby the thickness that forms a trend shaft is by the anticorrosion runner of no whirlpool liquid of 65 mm to 85 mm to 135 mm gradual changes; Top in blade root and hub frame buttcover plate junction adopts anticorrosion clay to smear moulding, make between the hub frame on blade root and buttcover plate top seamless, thereby form a circular arc transition face;
(4) the anticorrosion preparation of shaft: shaft adopts the thick-walled pipe of Ф 194 ~ 219mm to make, outside the tube wall of the shaft except that wheel hub hub frame is installed, at first stick with paste the anticorrosion clay of one deck, form nexine dope mud layer, put the steel mesh of 2mm again, after the steel wire encircling with Ф 2mm, paste the anticorrosion clay of one deck again over, strengthening superficial density with the manual polishing of acidproof powder at last, is the outer dope mud layer of 13 ~ 15mm thereby form thickness;
(5) making of double-deck eight oars and three layer of ten oar paddle:
The quaterfoil arc blade that above-mentioned technology is made is installed on the bottom of shaft as stated above, the straight plate blade of quaterfoil is installed on the upper strata of shaft, thereby forms double-deck eight oar paddles;
The straight plate blade of two blades that above-mentioned technology is made is installed on the bottom of shaft as stated above, and quaterfoil arc blade is installed on the middle level of shaft, and the straight plate blade of quaterfoil is installed on the upper strata of shaft, thereby forms three layer of ten oar paddle.
4. the preparation method of large anticorrosion according to claim 3 erosion paddle is characterized in that: anti-corrosion material described in the step (1) is meant that reactive phenolic resin, porcelain powder, silica flour, diamond dust are respectively by the mixture of 19.17%, 43%, 12.5%, 25.33% mass percent; Anticorrosion clay described in step (3) and the step (4) is meant reactive phenolic resin, acidproof powder filler, the curing agent mixture by the mass ratio of 1:1.2 ~ 1.8:0.02 ~ 0.05.
5. according to the preparation method of claim 3 or 4 described large anticorrosion erosion paddles, it is characterized in that: when the steel skeleton of the described blade of step (1) is the steel skeleton of arc blade, or adopt steel plate frame, or adopt the steel plate framework of steel reinforcement; When adopting steel plate frame, on steel plate, bore some circular holes; When adopting the steel plate framework of steel reinforcement, it adopts steel plate with the wheel hub buttcover plate by the part that screw is connected, or is positioned at one side employing steel plate of this part, and bores some circular holes, employing bar construction in addition on steel plate;
When the steel skeleton of the described blade of step (1) is the steel skeleton of straight plate blade, employing be steel plate structure, and steel plate be positioned at blade afterbody place bore afterbody be the circular arc limit all the other be the cavity on linear limit, in the square or leg-of-mutton cavity of steel plate drilled in middle.
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| CN105126693A (en) * | 2015-07-09 | 2015-12-09 | 李兴国 | Chamfer angle arc-shaped swirl anticorrosion blade and chamfer angle arc-shaped swirl anticorrosion stirring paddle |
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| CN103386265A (en) * | 2012-05-11 | 2013-11-13 | 四川汇利实业有限公司 | Multilayer stirring system |
| CN104971654A (en) * | 2015-06-11 | 2015-10-14 | 柳州美纳机械有限公司 | Rubber combined stirrer |
| CN105126693A (en) * | 2015-07-09 | 2015-12-09 | 李兴国 | Chamfer angle arc-shaped swirl anticorrosion blade and chamfer angle arc-shaped swirl anticorrosion stirring paddle |
| CN105126693B (en) * | 2015-07-09 | 2017-09-05 | 李兴国 | Long angle arc swirling flow anti-corrosion blade and long angle arc swirling flow anti-corrosion agitating paddle |
| CN104984686A (en) * | 2015-07-23 | 2015-10-21 | 江苏鑫复特环保科技有限公司 | High temperature resistant stirring paddle for high concentration acids and manufacturing method therefor |
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| CN105521740A (en) * | 2015-12-17 | 2016-04-27 | 河南理工大学 | Composite stirring blade and preparation method and installation method thereof, and stirrer |
| CN105521740B (en) * | 2015-12-17 | 2018-02-13 | 河南理工大学 | Composite stirring leaf and preparation method thereof, installation method and mixer |
| CN109000048A (en) * | 2018-02-02 | 2018-12-14 | 上海神农节能环保科技股份有限公司 | The anti-deposition industrial chemicals transfer pipeline of TVR evaporator combined type |
| CN109000048B (en) * | 2018-02-02 | 2023-10-24 | 上海神农节能环保科技股份有限公司 | TVR evaporator combined type anti-deposition chemical raw material conveying pipeline |
| CN109763001A (en) * | 2019-03-20 | 2019-05-17 | 金川集团股份有限公司 | A kind of eccentric stirring exchanger cell removing zinc for nickel hydroxide cobalt salt acid leaching liquor ion |
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